i chipped my 360, which i think involves a bit of the work you need to do, as that is essentially flashing the dvd firmware.
bit of a faff to be honest, needing special sata card etc, and depending on the drive model you have, it can be more fiddly.
Still, if you are half compentant with a PC, there are plenty of guides out there, but if not, i’d suggest sending it off to one of the many 3rd party places that will do the job for you.
DH